I'm sharing insights on improving book sales when you have a substantial number of published books.

I emphasize the 80-20 rule, where 80% of your sales usually come from 20% of your books.

I recommend analyzing successful books to find common elements, validating titles and subtitles, and researching keywords for improved organic sales.

Additionally, I suggest using the "pastor method" to update book descriptions and advise focusing on one book at a time when running Amazon ads instead of scaling lottery ads for multiple books.